Lubricating-axle.



A. C. ATKIN.

LUBRICATING AXLE.

APPLICATION man SEM. s. |91?.

Patented Feb. 11, 1919.

ARTHUR CHARLES ATKIN, OF HAMILTON, NEW ZEALAND.

LUBRICATINGAXLE.

Specification of Letters Patent.

*Patented Feb. 11, 1919.

Application Jed September 8, 1917. Serial N o. 190,398.

To all whom 'it may concern Be it known that I, ARTHUR CHARLES ATKIN, a subject of His Majesty the King of the United Kingdom of Great Britain and Ireland, resident of Hamilton, in the Provincial District of Auckland and Dominion of New Zealand, have invented new and useful Improvements in Lubricating-` Axles, of which the following is a specification.

This invention relates to vehicle axles and provides improved means for the efficient ubrication of the axles of vehicles designed to carry heavy loads.

According to this invention the axle arm is fitted at its end with a combined axle nut and Ioil reservoir, while through the axle arm itself are provided passages for the oil to pass from the reservoir to between the arm and axle box.

The invention will be described in conjunction with the accompanying drawings in which Figure 1 is a longitudinal sectional elevation of portion of an axle arm, constructed and fitted according to this invention and Fig. 2 is a cross sectional elevation through X-X Fig. 1.

In the drawing 1 represents the axle arm, which is formed with an externally screwed portion 2. An internally screwed nut 3 formed with an oil reservoir 4, and a flange 5 adapted to engage the outer end of the axle box 6, screws on the portion 2, so that the latter projects slightly into the oil reservoir 4. A leather washer 7 is inserted between the nut 3 and the end of the axle box 6, to prevent rattling.

Formed longitudinally through the arm 1, is an incli'ned oil passage 8 the upper end of which opens through the arm end, at a point below the center of the latter.

The oil passage 8 junctions at its lower end with a downwardly sloping oil passage 9 opening at its lower end throu h the lower portion of the periphery of t e axle arm, at a point to the rear of the vertical center line of the axle.

Copies of this patent may be obtained for The point at which the lower end of the oil passage 9 opens through the periphery of the axle arm, is important, for if the same is directly below or in advance of the axle center, the draft pressure, and the downward load pressure, will cause a blockage of the passage 9, whereupon lubrication ceases, and it is the position of the oil passage 9, on which the success of this invention depends.

I claiml. In an axle arm for weight carrying vehicles, an inclined oil passage formed longitudinally through said arm and opening at its upper end through the axle end; a downwardly sloping oil passage junctioning with the lower end of said first mentioned oil passage, and opening through 'the lower portion of the periphery of the axle arm at a point at the rear of the vertical center line of said axle arm and below the center of the latter.

2, An axle arm for weight carrying vehicles, having an externally screwed portion yand an inclined oil passage formed longitudinally therethrough, said inclined passage opening at its upper end through the axle arm end; a downwardly sloping oil passage junctioning at its upper end, with the lower end of said first mentioned oil passage and opening at its lower end through the lower portion of the periphery of said axle arm at a point at the rear of the vertical center line of said arm. and below the latters center; an axle box surrounding said axle arm; an internally screwed axle nut formed integral with an oil reservoir and having an external flange, which when the nut screws on said exten nally screwed portion of the axle arm, engages the end of said axle box; and a washer isituated between said axle nut and said axle ARTHUR CHARLES ATKIN.

Witnesses:

ERNEST WILrRnn Boron CAREY, MARY CHRISTINA BRENNAN.

ve cents each, by addressing the commissionev Washington, D. 0. ufrntmtf 

